01.AI, proprietary

# Yi-Lightning

> Yi-Lightning by 01.AI, released December 2024. Ranked #209 of 354 with a Noometry Index of 37.1. Scores, sources and comparisons.
- Canonical page: https://noometry.com/models/yi-lightning
- Last updated: 2026-10-10
- Title: Yi-Lightning Benchmarks, Price & Rank (October 2026)

Yi-Lightning by 01.AI ranks 209th of 354 ranked models on the Noometry Index as of October 2026, with a score of 37.1. Its strongest category is reasoning, where it ranks 139th.

Last verified October 10, 2026

## Specifications

- **Noometry rank:** #209 of 354
- **Index score:** 37.1
- **Evidence:** Confirmed 18 results
- **Provider:** [01.AI](https://noometry.com/providers/01-ai)
- **Released:** December 2, 2024
- **Weights:** Proprietary
- **Reasoning:** Unknown
- **Context window:** —
- **Max output:** —
- **Input price:** Not listed
- **Output price:** Not listed
- **Blended price:** Not listed
- **Output speed:** Not measured
- **Value:** Not ranked
- **Knowledge cutoff:** Unknown

## Category scores

Each category score combines every public result we have in that category.

Yi-Lightning category scores

1.  Coding 27.4
2.  Reasoning 25.9
3.  Math 36.2
4.  Knowledge 35.4
5.  Multilingual 42.2
6.  Instruction Following 67.4
7.  Long Context 39.4
8.  Writing & Preference 50.2
9.  020406080

Yi-Lightning category ranks
| Category | Score | Rank | Results |
| --- | --- | --- | --- |
| [Coding](https://noometry.com/best/coding) | 27.4 | #320 | 2 |
| [Reasoning](https://noometry.com/best/reasoning) | 25.9 | #139 | 1 |
| [Math](https://noometry.com/best/math) | 36.2 | #172 | 1 |
| [Knowledge](https://noometry.com/best/knowledge) | 35.4 | #185 | 1 |
| [Multilingual](https://noometry.com/best/multilingual) | 42.2 | #196 | 1 |
| [Instruction Following](https://noometry.com/best/instruction-following) | 67.4 | #196 | 1 |
| [Long Context](https://noometry.com/best/long-context) | 39.4 | #181 | 1 |
| [Writing & Preference](https://noometry.com/best/writing) | 50.2 | #184 | 3 |

## Strengths and weaknesses

Categories where Yi-Lightning places highest and lowest among the models ranked in each, with its score against that category's median.

### Strongest categories

Yi-Lightning: strongest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Reasoning](https://noometry.com/best/reasoning) | 25.9 | +2.3 | #139 of 350, top 40% |
| [Math](https://noometry.com/best/math) | 36.2 | −0.4 | #172 of 327, top 53% |
| [Knowledge](https://noometry.com/best/knowledge) | 35.4 | −1.9 | #185 of 314, top 59% |

### Weakest categories

Yi-Lightning: weakest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Coding](https://noometry.com/best/coding) | 27.4 | −11.3 | #320 of 340, top 95% |
| [Multilingual](https://noometry.com/best/multilingual) | 42.2 | −5.2 | #196 of 297, top 66% |
| [Instruction Following](https://noometry.com/best/instruction-following) | 67.4 | −3.8 | #196 of 305, top 65% |

## Closest competitors

The models ranked just above and below Yi-Lightning. When scores are this close, price and speed are often the better way to choose.

Models ranked closest to Yi-Lightning
| Model | Rank | Score | Blended $/M | Speed |  |
| --- | --- | --- | --- | --- | --- |
| [Granite 4.1 8b](https://noometry.com/models/granite-4-1-8b) | #205 | 37.4 | — | — | [Compare](https://noometry.com/compare/granite-4-1-8b-vs-yi-lightning) |
| [Gemma 3n E4b IT](https://noometry.com/models/gemma-3n-e4b-it) | #206 | 37.3 | — | 13 | [Compare](https://noometry.com/compare/gemma-3n-e4b-it-vs-yi-lightning) |
| [Step 3.7 Flash](https://noometry.com/models/step-3-7-flash) | #207 | 37.3 | $0.42 | — | [Compare](https://noometry.com/compare/step-3-7-flash-vs-yi-lightning) |
| [GPT-4.5](https://noometry.com/models/gpt-4-5) | #208 | 37.2 | — | — | [Compare](https://noometry.com/compare/gpt-4-5-vs-yi-lightning) |
| [Qwen Plus](https://noometry.com/models/qwen-plus) | #210 | 37.1 | $0.60 | 37 | [Compare](https://noometry.com/compare/qwen-plus-vs-yi-lightning) |
| [Gemini 2.5 Flash-Lite](https://noometry.com/models/gemini-2-5-flash-lite) | #211 | 37.0 | $0.18 | 172 | [Compare](https://noometry.com/compare/gemini-2-5-flash-lite-vs-yi-lightning) |
| [o3-mini](https://noometry.com/models/o3-mini) | #212 | 36.7 | $1.93 | — | [Compare](https://noometry.com/compare/o3-mini-vs-yi-lightning) |
| [Llama 3.1 Nemotron Ultra 253b v1](https://noometry.com/models/llama-3-1-nemotron-ultra-253b-v1) | #213 | 36.7 | — | — | [Compare](https://noometry.com/compare/llama-3-1-nemotron-ultra-253b-v1-vs-yi-lightning) |

Sponsored placements are available on pages like this one. [Advertise on Noometry](https://noometry.com/advertise)

## Benchmark results

Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.

### Coding

Yi-Lightning Coding benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [Aider Polyglot](https://noometry.com/benchmarks/aider-polyglot) | 12.9% | #39 of 44, top 89% |  | [Epoch AI](https://epoch.ai/benchmarks) |  |
| [LMArena Coding](https://noometry.com/benchmarks/arena-coding) | 1312 | #189 of 294, top 65% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Reasoning

Yi-Lightning Reasoning benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Hard Prompts](https://noometry.com/benchmarks/arena-hard-prompts) | 1302 | #187 of 297, top 63% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Math

Yi-Lightning Math benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Math](https://noometry.com/benchmarks/arena-math) | 1300 | #184 of 285, top 65% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Knowledge

Yi-Lightning Knowledge benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Expert](https://noometry.com/benchmarks/arena-expert) | 1286 | #182 of 273, top 67% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Multilingual

Yi-Lightning Multilingual benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Non-English](https://noometry.com/benchmarks/arena-non-english) | 1269 | #196 of 297, top 66% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Chinese](https://noometry.com/benchmarks/arena-chinese) | 1320 | #180 of 285, top 64% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena French](https://noometry.com/benchmarks/arena-french) | 1305 | #158 of 223, top 71% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena German](https://noometry.com/benchmarks/arena-german) | 1267 | #166 of 231, top 72% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Japanese](https://noometry.com/benchmarks/arena-japanese) | 1228 | #146 of 211, top 70% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Korean](https://noometry.com/benchmarks/arena-korean) | 1192 | #165 of 213, top 78% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Russian](https://noometry.com/benchmarks/arena-russian) | 1255 | #208 of 283, top 74% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Spanish](https://noometry.com/benchmarks/arena-spanish) | 1315 | #156 of 226, top 70% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Instruction Following

Yi-Lightning Instruction Following benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Instruction Following](https://noometry.com/benchmarks/arena-instruction-following) | 1278 | #189 of 298, top 64% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Long Context

Yi-Lightning Long Context benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Longer Query](https://noometry.com/benchmarks/arena-longer-query) | 1297 | #192 of 291, top 66% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

### Writing & Preference

Yi-Lightning Writing & Preference benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena Text](https://noometry.com/benchmarks/arena-text) | 1302 | #189 of 297, top 64% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Creative Writing](https://noometry.com/benchmarks/arena-creative-writing) | 1280 | #186 of 295, top 64% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |
| [LMArena Multi-Turn](https://noometry.com/benchmarks/arena-multi-turn) | 1311 | #181 of 295, top 62% |  | [LMArena](https://lmarena.ai/leaderboard/text) | 2026-10-08 |

## Compare Yi-Lightning

-   [Yi-Lightning vs GPT-4.5](https://noometry.com/compare/gpt-4-5-vs-yi-lightning)
-   [Yi-Lightning vs Qwen Plus](https://noometry.com/compare/qwen-plus-vs-yi-lightning)
-   [Yi-Lightning vs Step 3.7 Flash](https://noometry.com/compare/step-3-7-flash-vs-yi-lightning)
-   [Yi-Lightning vs Gemini 2.5 Flash-Lite](https://noometry.com/compare/gemini-2-5-flash-lite-vs-yi-lightning)
-   [Yi-Lightning vs Gemma 3n E4b IT](https://noometry.com/compare/gemma-3n-e4b-it-vs-yi-lightning)
-   [Yi-Lightning vs o3-mini](https://noometry.com/compare/o3-mini-vs-yi-lightning)
-   [Yi-Lightning vs GPT-6 Astra](https://noometry.com/compare/gpt-6-astra-vs-yi-lightning)
-   [Yi-Lightning vs Claude Fable 5.1](https://noometry.com/compare/claude-fable-5-1-vs-yi-lightning)
-   [Yi-Lightning vs Gemini 3.8 Flash](https://noometry.com/compare/gemini-3-8-flash-vs-yi-lightning)
-   [Yi-Lightning vs Kimi K3](https://noometry.com/compare/kimi-k3-vs-yi-lightning)
-   [Yi-Lightning vs Grok 4.6](https://noometry.com/compare/grok-4-6-vs-yi-lightning)
-   [Yi-Lightning vs Qwen3.8 Max](https://noometry.com/compare/qwen3-8-max-vs-yi-lightning)
-   [Yi-Lightning vs GLM-5.3](https://noometry.com/compare/glm-5-3-vs-yi-lightning)
-   [Yi-Lightning vs Muse Spark 1.3](https://noometry.com/compare/muse-spark-1-3-vs-yi-lightning)

## Other 01.AI models

-   [Yi-1.5-34B](https://noometry.com/models/yi-1-5-34b)30.6
-   [Yi-34B](https://noometry.com/models/yi-34b)27.8
-   [Yi 6B](https://noometry.com/models/yi-6b)
-   [Yi-Large](https://noometry.com/models/yi-large)

## Frequently asked questions

### How good is Yi-Lightning?

Yi-Lightning by 01.AI ranks 209th of 354 ranked models on the Noometry Index as of October 2026, with a score of 37.1. Its strongest category is reasoning, where it ranks 139th.

### Is Yi-Lightning open source?

No. Yi-Lightning is proprietary and available only through 01.AI's API and partner platforms.

### What are Yi-Lightning's strengths and weaknesses?

Relative to other ranked models, Yi-Lightning places best in reasoning, math, knowledge and lowest in coding, multilingual, instruction following.

### What is Yi-Lightning best at?

Its best category is reasoning, where it ranks 139th on Noometry.

### Cite this page

Noometry. (2026). Yi-Lightning benchmarks and pricing. Retrieved October 10, 2026, from https://noometry.com/models/yi-lightning

Quote Noometry with a link back to this page. It is also available in [Markdown](https://noometry.com/md/models/yi-lightning.md).